From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marex@denx.de>
Date: Wed, 12 Sep 2012 23:06:45 +0200
Subject: [U-Boot] Code Structure and API functionality of U-Boot
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Dear chandan mohanty,

> Hi,
>  I am a new member to u-boot mail list.
>   I have the source code of u-boot downloaded.I am aware that
> /boot,/board,/driver,include/config are the directory of imprtance. 
> I am trying to read the code.
>  
> 1.I see that there are lots of other files and lots of APIs in the above
> direcories.Can some one  describe/explain which API,which file does what
> operation say for ARM boards. 
> Any document/book suggestion on U-BOOT will be also helpfull on
> understanding the API functionality. 

See doc/ and the denx u-boot wiki.

> 2.Suppose I want to debug the U-Boot code.Should I use Abatron BDI2000
> hardware debugger ? OR is there any other method available?(I suppose I
> can not use gdb/kgdb) 

Either bdi2000 or openocd works just fine.

> Regards
> Chandan

Best regards,
Marek Vasut